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Confirming whether novel rhein derivative 4a induces paraptosis-like cell death by endoplasmic reticulum stress in ovarian cancer cells

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Ovarian cancer is the leading cause of death among gynecologic cancer patients. Although platinum-based chemotherapy as a frontline treatment for ovarian cancer has been widely used in clinical settings, its clinical efficacy is not satisfactory due to the resistance of ovarian cancer cells to

Effect of rhein on the glucose metabolism of Ehrlich ascites tumor cells.

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The effect of rhein, 4,5-dihydroxyanthraquinone-2-carboxylic acid, on oxygen consumption and the rate of aerobic and anaerobic lactate production by Ehrlich ascites tumor cells has been investigated. The rate of oxygen uptake decreases with the increase of rhein concentration. Rhein also inhibits

Rhein-based necrosis-avid MRI contrast agents for early evaluation of tumor response to microwave ablation therapy.

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Early evaluation of tumor response to thermal ablation therapy can help identify untreated tumor cells and then perform repeated treatment as soon as possible. The purpose of this work was to explore the potential of rhein-based necrosis-avid contrast agents (NACAs) for early

Rhein lysinate inhibits cell growth by modulating various mitogen-activated protein kinases in cervical cancer cells.

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In previous studies, we found that rhein lysinate (RHL; the salt of rhein and lysine, easily dissolved in water) inhibited the growth of tumor cells in breast and ovarian cancer and hepatocellular carcinoma. This study aimed to investigate the effect of RHL on the growth of human cervical carcinoma

Synergistic inhibition of metastatic breast cancer by dual-chemotherapy with excipient-free rhein/DOX nanodispersions

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Background: The management of metastatic cancer remains a major challenge in cancer therapy worldwide. The targeted delivery of chemotherapeutic drugs through rationally designed formulations is one potential therapeutic option. Notably,

Emodin, aloe-emodin and rhein induced DNA damage and inhibited DNA repair gene expression in SCC-4 human tongue cancer cells.

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In our primary studies, we have shown that emodin, aloe-emodin and rhein induced cytotoxic effects, including cell cycle arrest and apoptosis in SCC-4 human tongue cancer cells. However, details regarding their effects on DNA damage and repair gene expression in SCC-4 cells are not clear. We

Synthesis and Evaluation of Ga-68-Labeled Rhein for Early Assessment of Treatment-Induced Tumor Necrosis.

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This study aimed to synthesize a necrosis-avid agent using rhein as a precursor and labeled with gallium-68 (Ga-68) for positron emission tomography/computed tomography (PET/CT) imaging, to evaluate response to anticancer treatment in a mouse

Rhein lysinate induced S-phase arrest and increased the anti-tumor activity of 5-FU in HeLa cells.

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Rhein lysinate (RHL), easily dissolved in water, is one of the anthraquinones, and has been shown to have anti-tumor activity in different human cancer cell lines. In the present study, we observed that RHL could cause vacuolar degeneration in HeLa cells, which was not observed in human umbilical

Synthesis and anti-tumor activity evaluation of rhein-aloe emodin hybrid molecule.

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To improve the anti-tumor effects of rhein and aloe-emodin, a rhein-aloe-emodin hybrid molecule (RH-AE) was synthesized from rhein and aloe-emodin in the presence of dicyclohexylcarbodiimide (DCC) and 4-dimethylaminopyridine (DMAP). Chemical and spectroscopic methods, such as 1H and 13C NMR

SPECT Imaging of Treatment-Related Tumor Necrosis Using Technetium-99m-Labeled Rhein.

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OBJECTIVE Noninvasive imaging of treatment-induced necrosis is important to distinguish early responders from patients resistant to the treatment plan, enabling the tailored-made therapeutic intervention. The purpose of this study was to explore the feasibility of [99mTc]EDDA-HYNIC-2C-rhein for

A dielectric relaxation study on the effects of the antitumor drugs Lonidamine and Rhein on the membrane electrical properties of Ehrlich ascites tumor cells.

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The effects of the anti-tumor drugs lonidamine and rhein on the plasma membrane electrical properties of Ehrlich ascites tumor cells were investigated and compared. Dielectric relaxation measurements in the radiowave frequency range (10(4) to 10(8) Hz) as well as at higher frequencies (10(4) to

Proteomic analysis of rhein-induced cyt: ER stress mediates cell death in breast cancer cells.

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Rhein is a natural product purified from herbal plants such as Rheum palmatum, which has been shown to have anti-angiogenesis and anti-tumor metastasis properties. However, the biological effects of rhein on the behavior of breast cancers are not completely elucidated. To evaluate whether rhein

Rhein induced apoptosis through the endoplasmic reticulum stress, caspase- and mitochondria-dependent pathways in SCC-4 human tongue squamous cancer cells.

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Rhein, an anthraquinone compound, can be found in the rhizome of rhubarb, a traditional Chinese medicine herb showing antitumor activity. In this study, it was observed that rhein induced S-phase arrest through the inhibition of p53, cyclin A and E and it induced apoptosis through the endoplasmic

Rhein lysinate suppresses the growth of breast cancer cells and potentiates the inhibitory effect of Taxol in athymic mice.

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Earlier studies have shown that rhein, one of the major bioactive constituents of the rhizome of rhubarb, inhibits the proliferation of various human cancer cells. However, because of its water insolubility, the antitumor efficacy of rhein is limited in vivo. In this study, we studied the antitumor

Rhein lysinate suppresses the growth of tumor cells and increases the anti-tumor activity of Taxol in mice.

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In previous studies, rhein, one of the major bioactive constituents in the rhizome of rhubarb, inhibited the proliferation of various human cancer cells. However, because of its water insolubility, the anti-tumor efficacy of rhein was limited in vivo. In this study, we observed the anti-tumor

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